Fire-extinguisher.



C. SNYDER. FIRE EXTINGUISHER. APPLICATION FILED DEO.8,1911.

Patented Dec. 31, 1912.

q Vi/tmeoom CASSIN SNYDER, OF PHILADELPHIA, PENNSYLVANIA.

FIRE-EXTINGUISHER. Specification of Letters Patent- Patented Dec. 31, 1912- Appllcation filed December 8, 1911. Serial No. 664,528.

To all whom it may concern:

Be it known that I, CAssIN SNYDER, a citizen of the United States, residin in the city of Philadelphia, county of P iladel- Pennsylvania, have In- Improvements in Fire-Extinguishers, of which the member 18 has a flange and the member 21 is clampedthe p y invention relates to apparatus,

h any suitable material ma be stored and discharged, and

l of the operator. y Invention resides in a fire extinguisher plunger or plston is held locked or restrained in oppotogether lunger which the material etween the plun er or piston and the cap 3 is disposed thelspiral spring 27 shown compressed in Fig. l. n out of the piston or plunger and within the chamber 1 is confined the fi fluid 28 or other material to be e ected from the chamber 1. en the chamber 1 is empty and the plunger or piston at the extreme right end, as viewed in Fig. 1, the apparatus may and use as follows:

lve or stop cock 6, the

forces out of contained therein.

y invention resides in the apparatus herelnafter described and claimed.

paratus. Fig. a plunger setting tool or d a transverse sectional view, shown in elevation, taken looking in the direction of the arrows, A-A of Fig. 1.

casing or chamber 1, of any suitable form or cross section, and ofany suitable Fig. 2, aving the handle 30 ing the same and avingat its other end the nose 31. The rod 29 is screwed into and through the screw-threaded hole 8 in the cap 2, and passes through the ap plunger or piston toward the left as viewed in Fig. 1, thereby compressing the aperture of smaller diameter than the screwthreaded hole 5. At the other end of the chamber 1 the cap 3 has a central boss 9 screw-threaded at 10 to receive the screwthreaded enlargement 11 upon the handle 12.

pon

ough at a distance from the cured by pin 17 to the rod 14 threaded piece or enlargement l7 engaging in thescrew-threaded aperture in the main with a chamber, of a piston movable therewith a chamber, of a piston movable therein, in, means for propelling said piston, means means ormoving said piston, means for v independent of said propelling means for locking said piston in retracted position locking said piston in retracted position comprising a rod adapted to engage an comprising a rod adapted to engage and hold said piston, a cap on said chamber, sai 'holdvsaid piston, a cap on said chamber, said cap having a perfoi ation throu which cap having a perforation through which said rod extends, a handle on said rod outsaid rod extends, ahandle on said rod outside of said cap, means simultaneously actuside of said cap, said locking means also ated by said handle for attaching sai rod including means for detachably securing to said cap and to said piston, and means said rodto said cap and to said piston for permitting limited motionof said rod simultaneously. with respect to said cap when said rod is 2. In a fire extinguisher, the combination disen aged f1 om said pis on. with a chamber, of a piston movable therein, 7 In a fire extinguisher, the co bination assume the and holding the same in retracted position,

position shown in Fig. 1,

means on said rod for detachably securing when this position is reached the aperture 15 is fully closed by the screw-threaded plug the same to said cap, the movement of sai 11 and the plunger member 18 is secure y handle detaching sai rod from said piston held by the rod 14. Now the rod 29 is reand said cap simultaneously, and means for moved and the plunger is held locked in the moving said piston independently of said position shown in Fig. After the rerod.

moval of the rod 29 the material 28 is introi. In a fire extinguisher, the combination duced into the chamber 1,'and then'the stop with a chamber, of a piston therein, means cock or valve 6 is rep aced and the handle for locking said retracted position 7 turned to now, comprising a rod threaded to said chamber it is desired to eject the material 28 from and to said piston, means for actuating sai the chamber 1 the handle 12 an v rod 14 rod to disengage the same from said piston are unscrewed, thus releasing the plunger and from said chamber simultaneously, an

or piston member 18, whereupon he spring means for propelling sai piston in sai 27 expandstending to force the plunger tochamber independently of said rod after deward the right. And if the handle 7 of the tachment from saidrod.

5. In a fire extinguisher, with a chamber, of a piston movable there- In, means for moving said piston, means for in retracted position stopcock is turned to the flow position, the g expands and forces the plunger toward the, right, forcing out through the l 28, which is then directed or applied at the will of the operator. comprising a rod adapted to detachably en- After thelplunger has been released rom gage and hold said piston, a c'a on sai the rod 14, the pin 16 on the rod 14:, being chamber, said cap having a perforation longer than the diameter of the hole 15, through which said rod extends a handle revents the rod from having too much play on said rod outside of said cap, and means for securing said rod to said cap as said rod is being secured to said piston.

'6. In a fire extinguisher, the combination with respect to the cap 3.

What I claim is: 1. In a fire extinguisher,

the combination means for propelling said piston, a screwthreaded rod adapted to engage and hold said piston, a cap on said chamber, said cap having a perforation through which said rod extends, a handle on said rod outside 0 said cap, and further screw-threads upon said rod adapted to engage said cap as e screw threads on sai rod engage said ton, said piston when free from said being moved independently of said rod said propelling means.

3. In a fire extinguisher,

from said rod.

In testimony whereof I have hereunto affixed my signature in the presence of the two subscribing witnesses.

the combination GASSIN SNYDER.

'with a chamber, a cap on sai chamber, a

rod extending through said cap, a handle Witnesses:

on said rod, means on said rod for detach- A. E. STEINBOOK, ably lo king said piston for Ennaizoa'l. MCGALL.

the combination. 

